Shimano Ultegra FC-6750 Cranksets


  • Average Rating: 4.25/5
  • MSRP: $ 400.00
  • # of Reviews: 4

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Product Description

With the same engineered technology as the Shimano Dura-Ace crank, the Shimano Ultegra FC-6750 Compact road crankset uses a hollow outer chainring to save weight and boost rigidity for optimal power transfer and positive shifting under load. Compact design lightens your load and expands your gear range without the added weight and complexity of a triple. Hollowtech II design uses a wider bearing placement to maximize stiffness while keeping weight to a minimum - what you get is a dramatically stronger pedaling force with better power transfer, acceleration and speed.


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Reviews 1 - 4 (4 Reviews Total)

User Reviews

Overall Rating:4
Value Rating:4
Submitted by chuckmeister57 a Recreational Rider from

Date Reviewed: April 23, 2010

Strengths:    Better shifting

Weaknesses:    Price

Bottom Line:   
Noticable better shifting up front, Stiffer.I combine it with the Chris King BB and a Dura-ace 10 speed chain.

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Favorite Ride:   BRAG

Price Paid:    $239.00

Purchased At:   Performance

Similar Products Used:   FSA Carbon Pro;sram force

Bike Setup:   Dura-ace drivetrain; Chris king hubs, BB


Overall Rating:3
Value Rating:4
Submitted by EGPBST0710 a Road Racer from

Date Reviewed: April 8, 2010

Strengths:    Beautiful Crank, Shifts great! Stiff, Light

Weaknesses:    Just that it cracked, might be a bad design due to how fast the thin outer piece of the hollow chainring cracked

Bottom Line:   
This crank looks awesome and functions really well! It came stock on my bike and I loved everything about it until about a week ago. I noticed an issue when shifting up so I decided to take it off the bike and clean it up/regrease the BB area. Upon taking it off I noticed a pretty big problem..one of the shift pins had pulled through the outer ring and could wiggle in/out. Looking closer I noticed that the area around the shift pin was cracked. Although this was the only shift pin out of the four that had pulled through, 2 others had warped the area of the chainring surrounding them and had partially cracked the metal. I took photos of the shift pins before bringing it to my shop for warranty and after zooming in on the shift pins in the photos...you can clearly see that the metal shift pin has fatigued way past what it should have after only 900 miles. There were cracks in the metal all over the shift pin and I guess the best way to describe it would be to say that it looked like a piece of dried clay left out or crackled mud.

Expand full review >>

Favorite Ride:   Muddville

Purchased At:   OEM

Similar Products Used:   Sram Red Standard, Specialized S-Works, Shimano Dura-Ace

Bike Setup:   2010 Marin Stelvio Ultegra, Sram Red Standard 53/39t crank (now), Full Shimano Ultegra 6700 groupo other than the crank and chain, FSA K-Force Ergo 44cm handlebars, Specialized Romin SL Saddle, Mavic Ksyrium Elite Wheelset, Speedplay Stainless Pedals


Overall Rating:5
Value Rating:5
Submitted by swierszcz a Recreational Rider from

Date Reviewed: December 17, 2009

Strengths:    Much lighter than Rival crank it replaced. There is noticeable change in power transmission to the bike. Out of saddle climbing is smoother and less tiring. Shifting is smoother and faster, particularly front.

Weaknesses:    Price

Bottom Line:   
Stiff. light, much improved shifting and almost complete lack of flex comparing to the Rival compact crank I used before.

Expand full review >>

Price Paid:    $330.00

Purchased At:   Wiggle.com

Similar Products Used:   Rival, Truvativ Elita 2.2

Bike Setup:   Orbea Onix, Rival RD, FD,and shifters, Shimano RS80 wheelset, DA chain, FSA Compact Wing handlebar


Overall Rating:5
Value Rating:5
Submitted by SROC3 a Road Racer from

Date Reviewed: December 7, 2009

Strengths:    Lightweight, stiff and the good old Shimano reliability and smooth shifting qualities.

Weaknesses:    none

Bottom Line:   
From the get go, shifting was better and much less flex at the crank. Very stiff and also was about 300 grams lighter than my last crank. Price quoted above was including the BB :) I also changed my chain to a dura ace chain (highly recommended).

Expand full review >>

Favorite Ride:   Cervelo S1

Price Paid:    $235.00

Purchased At:   E-Bay

Similar Products Used:   FSA Gossamer Crank

Bike Setup:   Cervelo S1, Ceramic BB, TRP brakes, custom wheelset



Reviews 1 - 4 (4 Reviews Total)

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